High severity · published Aug 8, 2023
CVE-2023-20555
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially…
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
Insufficient input validation in
CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting
an arbitrary bit in an attacker-controlled pointer potentially leading to
arbitrary code execution in SMM.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A3
Athlon 3015e Firmware · Amd
before pollockpi-ft5_1.0.0.5 · source: NVD
AG
Athlon Gold 3150c Firmware · Amd
before picassopi-fp5_1.0.0.f · source: NVD
AG
Athlon Gold 3150g Firmware · Amd
before comboam4piv1_1.0.0.a; before comboam4v2_1.2.0.a · source: NVD
AG
Athlon Gold 3150ge Firmware · Amd
before comboam4piv1_1.0.0.a; before comboam4v2_1.2.0.a · source: NVD
AG
Athlon Gold 3150u Firmware · Amd
before picassopi-fp5_1.0.0.f · source: NVD
AG
Athlon Gold Pro 3150g Firmware · Amd
before comboam4piv1_1.0.0.a; before comboam4v2_1.2.0.a · source: NVD
AG
Athlon Gold Pro 3150ge Firmware · Amd
before comboam4piv1_1.0.0.a; before comboam4v2_1.2.0.a · source: NVD
AP
Athlon Pro 300ge Firmware · Amd
before comboam4piv1_1.0.0.a; before comboam4v2_1.2.0.a · source: NVD
AP
Athlon Pro 3045b Firmware · Amd
before picassopi-fp5_1.0.0.f · source: NVD
AP
Athlon Pro 3145b Firmware · Amd
before picassopi-fp5_1.0.0.f · source: NVD
AS
Athlon Silver 3050c Firmware · Amd
before picassopi-fp5_1.0.0.f · source: NVD
AS
Athlon Silver 3050e Firmware · Amd
before picassopi-fp5_1.0.0.f · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20555
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20555
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4003
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